Vulnerability-Lookup

GHSA-W375-MQGW-7GRH

Vulnerability from github – Published: 2026-09-17 18:32 – Updated: 2026-09-17 18:32

Details

In the Linux kernel, the following vulnerability has been resolved:

usb: gadget: r8a66597: avoid double free of ep0_req in probe error path

If usb_add_gadget_udc() fails, r8a66597_probe() jumps to err_add_udc and frees ep0_req, then falls through to clean_up2 where ep0_req is freed again when it is non-NULL.

Remove the redundant free from err_add_udc and keep the cleanup in clean_up2 so the request is released exactly once.

Issue found using a prototype static analysis tool and confirmed by code review.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2026-93141"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-17T17:18:09Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: r8a66597: avoid double free of ep0_req in probe error path\n\nIf usb_add_gadget_udc() fails, r8a66597_probe() jumps to err_add_udc\nand frees ep0_req, then falls through to clean_up2 where ep0_req is\nfreed again when it is non-NULL.\n\nRemove the redundant free from err_add_udc and keep the cleanup in\nclean_up2 so the request is released exactly once.\n\nIssue found using a prototype static analysis tool\nand confirmed by code review.",
  "id": "GHSA-w375-mqgw-7grh",
  "modified": "2026-09-17T18:32:12Z",
  "published": "2026-09-17T18:32:12Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93141"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/150d3f3c461345b6c9ae784912cf1e49c8e5ff6b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/41d541e3718db01668a4cd29815ee4b3b55f76d2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6648c470918371766f6d368113dd2a4faebac93f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6be64cca6527f7fc99b05abf54f22db91bbc116f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7721cf32efa428bd9649f4a9b89fc85601df87de"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b2e68583c7c51eea2aafb8f1793e0d285c56ac82"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c9e93290ffe7db22a8131a5f5fd026335090fbbe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f9c43246128a2dd0f2bbad71decf153910ce3606"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-93141 (GCVE-0-2026-93141)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:11 – Updated: 2026-09-17 16:11

Title

usb: gadget: r8a66597: avoid double free of ep0_req in probe error path

Summary

In the Linux kernel, the following vulnerability has been resolved: usb: gadget: r8a66597: avoid double free of ep0_req in probe error path If usb_add_gadget_udc() fails, r8a66597_probe() jumps to err_add_udc and frees ep0_req, then falls through to clean_up2 where ep0_req is freed again when it is non-NULL. Remove the redundant free from err_add_udc and keep the cleanup in clean_up2 so the request is released exactly once. Issue found using a prototype static analysis tool and confirmed by code review.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

8 references

URL	Tags
https://git.kernel.org/stable/c/c9e93290ffe7db22a…
https://git.kernel.org/stable/c/7721cf32efa428bd9…
https://git.kernel.org/stable/c/f9c43246128a2dd0f…
https://git.kernel.org/stable/c/150d3f3c461345b6c…
https://git.kernel.org/stable/c/b2e68583c7c51eea2…
https://git.kernel.org/stable/c/6648c470918371766…
https://git.kernel.org/stable/c/6be64cca6527f7fc9…
https://git.kernel.org/stable/c/41d541e3718db0166…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 776976a67ae25d18be42794fd783a50757402cbe , < c9e93290ffe7db22a8131a5f5fd026335090fbbe (git) Affected: 776976a67ae25d18be42794fd783a50757402cbe , < 7721cf32efa428bd9649f4a9b89fc85601df87de (git) Affected: 776976a67ae25d18be42794fd783a50757402cbe , < f9c43246128a2dd0f2bbad71decf153910ce3606 (git) Affected: 776976a67ae25d18be42794fd783a50757402cbe , < 150d3f3c461345b6c9ae784912cf1e49c8e5ff6b (git) Affected: 776976a67ae25d18be42794fd783a50757402cbe , < b2e68583c7c51eea2aafb8f1793e0d285c56ac82 (git) Affected: 776976a67ae25d18be42794fd783a50757402cbe , < 6648c470918371766f6d368113dd2a4faebac93f (git) Affected: 776976a67ae25d18be42794fd783a50757402cbe , < 6be64cca6527f7fc99b05abf54f22db91bbc116f (git) Affected: 776976a67ae25d18be42794fd783a50757402cbe , < 41d541e3718db01668a4cd29815ee4b3b55f76d2 (git)
Linux	Linux	Affected: 3.17 Unaffected: 0 , < 3.17 (semver) Unaffected: 5.10.270 , ≤ 5.10.* (semver) Unaffected: 5.15.221 , ≤ 5.15.* (semver) Unaffected: 6.1.188 , ≤ 6.1.* (semver) Unaffected: 6.6.157 , ≤ 6.6.* (semver) Unaffected: 6.12.110 , ≤ 6.12.* (semver) Unaffected: 6.18.52 , ≤ 6.18.* (semver) Unaffected: 7.2.6 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

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          "programFiles": [
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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